I just confirmed the problem myself. I thought my UI was looking more greenish than blue (my original layout)
The colors slightly change on every cubase restart and it doesn’t matter if you’ve saved preferences.
from right to left
1.
2.
3.
The values were also different in cubase each time I went back
Seems like the only real way is to input the custom values yourself everytime you restart cubase
I think it may be coded in a way where it selects a percentage of color instead of exact color?
I started here
upon three restarts it went to here
edit// just to prove im not nuts I tried restarting 5 more times
right to left
seems it slightly changes eachtime